SabreTools/SabreTools.Serialization
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Add Deserializer for AppPkgHeader (#14)

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* Add Deserializer for AppPkgHeader

* Fix typo

* add using System.Text

* Fix typo
This commit is contained in:
Deterous
2024-12-17 14:10:38 +09:00
committed by GitHub
parent b5f366680d
commit 7dc4750f3b
2 changed files with 152 additions and 0 deletions
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73
SabreTools.Serialization.Test/Deserializers/AppPkgHeaderTests.cs Normal file
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using System.IO;
using System.Linq;
using SabreTools.Serialization.Deserializers;
using Xunit;
namespace SabreTools.Serialization.Test.Deserializers
{
public class AppPkgHeaderTests
{
[Fact]
public void NullArray_Null()
{
byte[]? data = null;
int offset = 0;
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data, offset);
Assert.Null(actual);
}
[Fact]
public void EmptyArray_Null()
{
byte[]? data = [];
int offset = 0;
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data, offset);
Assert.Null(actual);
}
[Fact]
public void InvalidArray_Null()
{
byte[]? data = [.. Enumerable.Repeat<byte>(0xFF, 1024)];
int offset = 0;
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data, offset);
Assert.Null(actual);
}
[Fact]
public void NullStream_Null()
{
Stream? data = null;
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data);
Assert.Null(actual);
}
[Fact]
public void EmptyStream_Null()
{
Stream? data = new MemoryStream([]);
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data);
Assert.Null(actual);
}
[Fact]
public void InvalidStream_Null()
{
Stream? data = new MemoryStream([.. Enumerable.Repeat<byte>(0xFF, 1024)]);
var deserializer = new AppPkgHeader();
var actual = deserializer.Deserialize(data);
Assert.Null(actual);
}
}
}

79
SabreTools.Serialization/Deserializers/AppPkgHeader.cs Normal file
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using System.IO;
using System.Text;
using SabreTools.IO.Extensions;
using static SabreTools.Models.PlayStation4.Constants;
namespace SabreTools.Serialization.Deserializers
{
public class AppPkgHeader : BaseBinaryDeserializer<Models.PlayStation4.AppPkgHeader>
{
/// <inheritdoc/>
public override Models.PlayStation4.AppPkgHeader? Deserialize(Stream? data)
{
// If the data is invalid
if (data == null || !data.CanRead)
return null;
try
{
// Create a new app.pkg header to fill
var appPkgHeader = new Models.PlayStation4.AppPkgHeader();
appPkgHeader.Magic = data.ReadUInt32BigEndian();
if (appPkgHeader.Magic != AppPkgMagic)
return null;
appPkgHeader.Type = data.ReadUInt32BigEndian();
appPkgHeader.PKGUnknown = data.ReadUInt32BigEndian();
appPkgHeader.FileCount = data.ReadUInt32BigEndian();
appPkgHeader.EntryCount = data.ReadUInt32BigEndian();
appPkgHeader.SCEntryCount = data.ReadUInt16BigEndian();
appPkgHeader.EntryCount2 = data.ReadUInt16BigEndian();
appPkgHeader.TableOffset = data.ReadUInt32BigEndian();
appPkgHeader.EntryDataSize = data.ReadUInt32BigEndian();
appPkgHeader.BodyOffset = data.ReadUInt64BigEndian();
appPkgHeader.BodySize = data.ReadUInt64BigEndian();
appPkgHeader.ContentOffset = data.ReadUInt64BigEndian();
appPkgHeader.ContentSize = data.ReadUInt64BigEndian();
byte[] contentID = data.ReadBytes(0x24);
appPkgHeader.ContentID = Encoding.ASCII.GetString(contentID).TrimEnd('\0');
appPkgHeader.ContentZeroes = data.ReadBytes(0xC);
appPkgHeader.DRMType = data.ReadUInt32BigEndian();
appPkgHeader.ContentType = data.ReadUInt32BigEndian();
appPkgHeader.ContentFlags = data.ReadUInt32BigEndian();
appPkgHeader.PromoteSize = data.ReadUInt32BigEndian();
appPkgHeader.VersionDate = data.ReadUInt32BigEndian();
appPkgHeader.VersionHash = data.ReadUInt32BigEndian();
appPkgHeader.Zeroes1 = data.ReadBytes(0x78);
appPkgHeader.MainEntry1SHA256 = data.ReadBytes(0x20);
appPkgHeader.MainEntry2SHA256 = data.ReadBytes(0x20);
appPkgHeader.DigestTableSHA256 = data.ReadBytes(0x20);
appPkgHeader.MainTableSHA256 = data.ReadBytes(0x20);
appPkgHeader.Zeroes2 = data.ReadBytes(0x280);
appPkgHeader.PFSUnknown = data.ReadUInt32BigEndian();
appPkgHeader.PFSImageCount = data.ReadUInt32BigEndian();
appPkgHeader.PFSImageFlags = data.ReadUInt64BigEndian();
appPkgHeader.PFSImageOffset = data.ReadUInt64BigEndian();
appPkgHeader.PFSImageSize = data.ReadUInt64BigEndian();
appPkgHeader.MountImageOffset = data.ReadUInt64BigEndian();
appPkgHeader.MountImageSize = data.ReadUInt64BigEndian();
appPkgHeader.PKGSize = data.ReadUInt64BigEndian();
appPkgHeader.PKGSignedSize = data.ReadUInt32BigEndian();
appPkgHeader.PKGCacheSize = data.ReadUInt32BigEndian();
appPkgHeader.PFSImageSHA256 = data.ReadBytes(0x20);
appPkgHeader.PFSSignedSHA256 = data.ReadBytes(0x20);
appPkgHeader.PFSSplitSize0 = data.ReadUInt64BigEndian();
appPkgHeader.PFSSplitSize1 = data.ReadUInt64BigEndian();
appPkgHeader.Zeroes3 = data.ReadBytes(0xB50);
appPkgHeader.PKGSHA256 = data.ReadBytes(0x20);
return appPkgHeader;
}
catch
{
// Ignore the actual error
return null;
}
}
}
}